Patents by Inventor Hermann Springmann

Hermann Springmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the production of carboxymethylated alchols, ether alcohols, thioalcohols, or alkyl phenols
    Patent number: 4625057
    Abstract: A process for the production of carboxymethylates comprises reacting alcohols, ether alcohols, or alkyl phenols with an aqueous solution of at most a stoichiometric amount of free chloroacetic acid and twice the stoichiometric amount of an aqueous base. The chloroacetic acid and base are added separately, but simultaneously under agitation (at elevated temperature and under reduced pressure) to the alcohol or alkyl phenol. The water content in the reaction mixture, during the entire reaction, is maintained at 0.3-1.5% by weight. Increased selectivity results and it now becomes possible to use aqueous chloroacetic acid in this process.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: November 25, 1986
    Assignee: Huels Aktiengesellschaft
    Inventors: Hermann Springmann, Kurt Kosswig
  • Process for separating sulfuric acid from sulfoxidation output
    Patent number: 4310473
    Abstract: The process for separating sulfuric acid from the sulfoxidation output obtained when paraffins are reacted with sulfuric acid, oxygen and water in the presence of ultraviolet light, using an alcohol containing at least 5 C atoms, is improved by treating the sulfoxidation output with a 0.25 to 2.5 fold amount by weight of a mixture of(a) 40 to 95% by weight of alcohol, and(b) 5 to 60% by weight of paraffins and the aqueous phase formed thereby is separated with the sulfuric acid.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: January 12, 1982
    Assignee: Chemische Werke Huls AG
    Inventors: Hermann Springmann, Karl Borchers
  • Process for separating sulfonic acids from the reaction products obtained when parafins are reacted with sulfur dioxide, oxygen and water in the presence of ultra-violet light
    Patent number: 4288389
    Abstract: A process for separating sulfonic acids from the reaction product obtained by reacting paraffins with sulfuric acids, oxygen and water in the presence of ultra-violet light where an alcohol is used as an extractant.The reaction product is treated with an aromatic alcohol as the extractant where the general formula of the alcohol is: ##STR1## wherein: R.sup.1 is a phenyl group possibly substituted by halogen atoms and/or alkyl groups with 1 to 6 C atoms;R.sup.2 and R.sup.3 denote hydrogen;n is an integer from 1 to 3; andR.sup.2 may also be a methyl group when n=1.Three phases are formed with the center phase as the alcohol phase. The alcohol phase is isolated from the remaining phases and the sulfonic acids are separated from this center alcohol phase.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: September 8, 1981
    Assignee: Chemische Werke Huls AG
    Inventor: Hermann Springmann
  • Process for the carboxymethylation of alcohols or ether alcohols
    Patent number: 3992443
    Abstract: Alcohols, preferably ethoxylated alcohols, are carboxymethylated by reacting a mixture thereof and a salt of chloroacetic acid with an alkali hydroxide.
    Type: Grant
    Filed: April 15, 1975
    Date of Patent: November 16, 1976
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventor: Hermann Springmann